SelectionDAG.h revision eb19e40efbd3cae80c908a30cdf4d33450733c45
1c3aae25116e66c177579b0b79182b09340b19753Chris Lattner//===-- llvm/CodeGen/SelectionDAG.h - InstSelection DAG ---------*- C++ -*-===// 2ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 36fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// The LLVM Compiler Infrastructure 46fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// 56fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// This file was developed by the LLVM research group and is distributed under 66fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// the University of Illinois Open Source License. See LICENSE.TXT for details. 7ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 86fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell//===----------------------------------------------------------------------===// 9ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 10c3aae25116e66c177579b0b79182b09340b19753Chris Lattner// This file declares the SelectionDAG class, and transitively defines the 11c3aae25116e66c177579b0b79182b09340b19753Chris Lattner// SDNode class and subclasses. 12ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 13cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner//===----------------------------------------------------------------------===// 14cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 15cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#ifndef LLVM_CODEGEN_SELECTIONDAG_H 16cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#define LLVM_CODEGEN_SELECTIONDAG_H 17cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 18c3aae25116e66c177579b0b79182b09340b19753Chris Lattner#include "llvm/CodeGen/SelectionDAGNodes.h" 19b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner#include "llvm/ADT/ilist" 20b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 21cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#include <map> 22109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner#include <list> 23eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner#include <string> 24d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 25d0fde30ce850b78371fd1386338350591f9ff494Brian Gaekenamespace llvm { 26c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class TargetLowering; 27c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class TargetMachine; 28c3aae25116e66c177579b0b79182b09340b19753Chris Lattner class MachineFunction; 29c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 30c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// SelectionDAG class - This is used to represent a portion of an LLVM function 31c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// in a low-level Data Dependence DAG representation suitable for instruction 32c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection. This DAG is constructed as the first step of instruction 33c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// selection in order to allow implementation of machine specific optimizations 34c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// and code simplifications. 35c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// 36c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// The representation used by the SelectionDAG is a target-independent 37c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// representation, which has some similarities to the GCC RTL representation, 38c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// but is significantly more simple, powerful, and is a graph form instead of a 39c3aae25116e66c177579b0b79182b09340b19753Chris Lattner/// linear form. 40cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner/// 41cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerclass SelectionDAG { 42063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner TargetLowering &TLI; 43c3aae25116e66c177579b0b79182b09340b19753Chris Lattner MachineFunction &MF; 44cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 45c3aae25116e66c177579b0b79182b09340b19753Chris Lattner // Root - The root of the entire DAG. EntryNode - The starting token. 46c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand Root, EntryNode; 47cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 48b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner // AllNodes - A linked list of nodes in the current DAG. 49b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner ilist<SDNode> AllNodes; 50691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth 51691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // ValueNodes - track SrcValue nodes 52691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth std::map<std::pair<const Value*, int>, SDNode*> ValueNodes; 53691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth 54cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattnerpublic: 55063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner SelectionDAG(TargetLowering &tli, MachineFunction &mf) : TLI(tli), MF(mf) { 56c3aae25116e66c177579b0b79182b09340b19753Chris Lattner EntryNode = Root = getNode(ISD::EntryToken, MVT::Other); 57c3aae25116e66c177579b0b79182b09340b19753Chris Lattner } 58cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner ~SelectionDAG(); 59cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 60c3aae25116e66c177579b0b79182b09340b19753Chris Lattner MachineFunction &getMachineFunction() const { return MF; } 61063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner const TargetMachine &getTarget() const; 62063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner TargetLowering &getTargetLoweringInfo() const { return TLI; } 63cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 641080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner /// viewGraph - Pop up a ghostview window with the DAG rendered using 'dot'. 651080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner /// 661080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner void viewGraph(); 671080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 681080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 69b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner typedef ilist<SDNode>::const_iterator allnodes_const_iterator; 70b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_const_iterator allnodes_begin() const { return AllNodes.begin(); } 71b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_const_iterator allnodes_end() const { return AllNodes.end(); } 72b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner typedef ilist<SDNode>::iterator allnodes_iterator; 73b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_iterator allnodes_begin() { return AllNodes.begin(); } 74b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner allnodes_iterator allnodes_end() { return AllNodes.end(); } 75b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 76c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getRoot - Return the root tag of the SelectionDAG. 77cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 78c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &getRoot() const { return Root; } 79cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 80c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getEntryNode - Return the token chain corresponding to the entry of the 81c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// function. 82c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &getEntryNode() const { return EntryNode; } 83cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 84c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// setRoot - Set the current root tag of the SelectionDAG. 85cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 86c3aae25116e66c177579b0b79182b09340b19753Chris Lattner const SDOperand &setRoot(SDOperand N) { return Root = N; } 87cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 881d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// Combine - This iterates over the nodes in the SelectionDAG, folding 891d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// certain types of nodes together, or eliminating superfluous nodes. When 901d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// the AfterLegalize argument is set to 'true', Combine takes care not to 911d4d41411190dd9e62764e56713753d4155764ddNate Begeman /// generate any nodes that will be illegal on the target. 921d4d41411190dd9e62764e56713753d4155764ddNate Begeman void Combine(bool AfterLegalize); 931d4d41411190dd9e62764e56713753d4155764ddNate Begeman 94c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Legalize - This transforms the SelectionDAG into a SelectionDAG that is 95c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// compatible with the target instruction selector, as indicated by the 96c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// TargetLowering object. 97cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 98c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// Note that this is an involved process that may invalidate pointers into 99c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// the graph. 100063287a76b5d1486f498fcf674a26d1155471a3fChris Lattner void Legalize(); 101c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 102d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// RemoveDeadNodes - This method deletes all unreachable nodes in the 103d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// SelectionDAG, including nodes (like loads) that have uses of their token 104d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// chain but no other uses and no side effect. If a node is passed in as an 105d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner /// argument, it is used as the seed for node deletion. 106d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner void RemoveDeadNodes(SDNode *N = 0); 107d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner 10847725d059b259f8a0c145478300c9e9caa006b59Chris Lattner SDOperand getString(const std::string &Val); 109c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getConstant(uint64_t Val, MVT::ValueType VT); 110056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand getTargetConstant(uint64_t Val, MVT::ValueType VT); 111c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getConstantFP(double Val, MVT::ValueType VT); 11214229bb6369c110644c11bc7906b0c1167d3a87aEvan Cheng SDOperand getGlobalAddress(const GlobalValue *GV, MVT::ValueType VT, 11314229bb6369c110644c11bc7906b0c1167d3a87aEvan Cheng int offset = 0); 11461ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng SDOperand getTargetGlobalAddress(const GlobalValue *GV, MVT::ValueType VT, 11514229bb6369c110644c11bc7906b0c1167d3a87aEvan Cheng int offset = 0); 116c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getFrameIndex(int FI, MVT::ValueType VT); 117afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner SDOperand getTargetFrameIndex(int FI, MVT::ValueType VT); 1185839bf2b3bd22689d9dd0e9de66c2dce71d130aeChris Lattner SDOperand getConstantPool(Constant *C, MVT::ValueType VT); 1195839bf2b3bd22689d9dd0e9de66c2dce71d130aeChris Lattner SDOperand getTargetConstantPool(Constant *C, MVT::ValueType VT); 120c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getBasicBlock(MachineBasicBlock *MBB); 121c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getExternalSymbol(const char *Sym, MVT::ValueType VT); 1222a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth SDOperand getTargetExternalSymbol(const char *Sym, MVT::ValueType VT); 12315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner SDOperand getValueType(MVT::ValueType); 124d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getRegister(unsigned Reg, MVT::ValueType VT); 125c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 126d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getCopyToReg(SDOperand Chain, unsigned Reg, SDOperand N) { 127d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return getNode(ISD::CopyToReg, MVT::Other, Chain, 128d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner getRegister(Reg, N.getValueType()), N); 129cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 130cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 131e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // This version of the getCopyToReg method takes an extra operand, which 132e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // indicates that there is potentially an incoming flag value (if Flag is not 133e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // null) and that there should be a flag result. 134e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand getCopyToReg(SDOperand Chain, unsigned Reg, SDOperand N, 135e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand Flag) { 136e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<MVT::ValueType> VTs; 137e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner VTs.push_back(MVT::Other); 138e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner VTs.push_back(MVT::Flag); 139e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<SDOperand> Ops; 140e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(Chain); 141e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(getRegister(Reg, N.getValueType())); 142e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(N); 143e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner if (Flag.Val) Ops.push_back(Flag); 144e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner return getNode(ISD::CopyToReg, VTs, Ops); 145e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner } 146e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner 147d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getCopyFromReg(SDOperand Chain, unsigned Reg, MVT::ValueType VT) { 148d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner std::vector<MVT::ValueType> ResultTys; 149d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner ResultTys.push_back(VT); 150d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner ResultTys.push_back(MVT::Other); 151d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner std::vector<SDOperand> Ops; 152d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Ops.push_back(Chain); 153d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Ops.push_back(getRegister(Reg, VT)); 154d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return getNode(ISD::CopyFromReg, ResultTys, Ops); 15518c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner } 156e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner 157e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // This version of the getCopyFromReg method takes an extra operand, which 158e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // indicates that there is potentially an incoming flag value (if Flag is not 159e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner // null) and that there should be a flag result. 160e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand getCopyFromReg(SDOperand Chain, unsigned Reg, MVT::ValueType VT, 161e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand Flag) { 162e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<MVT::ValueType> ResultTys; 163e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(VT); 164e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(MVT::Other); 165e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(MVT::Flag); 166e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<SDOperand> Ops; 167e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(Chain); 168e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner Ops.push_back(getRegister(Reg, VT)); 169e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner if (Flag.Val) Ops.push_back(Flag); 170e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner return getNode(ISD::CopyFromReg, ResultTys, Ops); 171e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner } 17218c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner 173d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner SDOperand getImplicitDef(SDOperand Chain, unsigned Reg, MVT::ValueType VT) { 174d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return getNode(ISD::ImplicitDef, MVT::Other, Chain, getRegister(Reg, VT)); 175cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 176cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 177c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getCall - Note that this destroys the vector of RetVals passed in. 178c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// 179c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDNode *getCall(std::vector<MVT::ValueType> &RetVals, SDOperand Chain, 1804c1eae9fb329e0e371d453957c56426294de24e9Chris Lattner SDOperand Callee, bool isTailCall = false) { 1814211e73c4905af413db7524f24414c16a7f69102Chris Lattner SDNode *NN = new SDNode(isTailCall ? ISD::TAILCALL : ISD::CALL, Chain, 1824211e73c4905af413db7524f24414c16a7f69102Chris Lattner Callee); 183109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner setNodeValueTypes(NN, RetVals); 184c3aae25116e66c177579b0b79182b09340b19753Chris Lattner AllNodes.push_back(NN); 185c3aae25116e66c177579b0b79182b09340b19753Chris Lattner return NN; 186cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner } 187cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 18802b86f52ed19213ef4911da902145155c03fb136Chris Lattner /// getCall - This is identical to the one above, and should be used for calls 18902b86f52ed19213ef4911da902145155c03fb136Chris Lattner /// where arguments are passed in physical registers. This destroys the 19002b86f52ed19213ef4911da902145155c03fb136Chris Lattner /// RetVals and ArgsInRegs vectors. 19102b86f52ed19213ef4911da902145155c03fb136Chris Lattner SDNode *getCall(std::vector<MVT::ValueType> &RetVals, SDOperand Chain, 1924211e73c4905af413db7524f24414c16a7f69102Chris Lattner SDOperand Callee, std::vector<SDOperand> &ArgsInRegs, 1934211e73c4905af413db7524f24414c16a7f69102Chris Lattner bool isTailCall = false) { 19402b86f52ed19213ef4911da902145155c03fb136Chris Lattner ArgsInRegs.insert(ArgsInRegs.begin(), Callee); 19502b86f52ed19213ef4911da902145155c03fb136Chris Lattner ArgsInRegs.insert(ArgsInRegs.begin(), Chain); 1964c1eae9fb329e0e371d453957c56426294de24e9Chris Lattner SDNode *NN = new SDNode(isTailCall ? ISD::TAILCALL : ISD::CALL, ArgsInRegs); 197109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner setNodeValueTypes(NN, RetVals); 19802b86f52ed19213ef4911da902145155c03fb136Chris Lattner AllNodes.push_back(NN); 19902b86f52ed19213ef4911da902145155c03fb136Chris Lattner return NN; 20002b86f52ed19213ef4911da902145155c03fb136Chris Lattner } 20102b86f52ed19213ef4911da902145155c03fb136Chris Lattner 2027cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand getCondCode(ISD::CondCode Cond); 203cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 2041ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// getZeroExtendInReg - Return the expression required to zero extend the Op 2051ccae666f596d5aeca5c9942995763600b622062Chris Lattner /// value assuming it was the smaller SrcTy value. 2061ccae666f596d5aeca5c9942995763600b622062Chris Lattner SDOperand getZeroExtendInReg(SDOperand Op, MVT::ValueType SrcTy); 2071ccae666f596d5aeca5c9942995763600b622062Chris Lattner 208c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getNode - Gets or creates the specified node. 209cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 210c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT); 211c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, SDOperand N); 212c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 213c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand N1, SDOperand N2); 214c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 215c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand N1, SDOperand N2, SDOperand N3); 216c3aae25116e66c177579b0b79182b09340b19753Chris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 2172d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4); 2182d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 219f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4, 220f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner SDOperand N5); 221f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner SDOperand getNode(unsigned Opcode, MVT::ValueType VT, 222c3aae25116e66c177579b0b79182b09340b19753Chris Lattner std::vector<SDOperand> &Children); 2234211e73c4905af413db7524f24414c16a7f69102Chris Lattner SDOperand getNode(unsigned Opcode, std::vector<MVT::ValueType> &ResultTys, 2244211e73c4905af413db7524f24414c16a7f69102Chris Lattner std::vector<SDOperand> &Ops); 225c3aae25116e66c177579b0b79182b09340b19753Chris Lattner 2267cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// getSetCC - Helper function to make it easier to build SetCC's if you just 2277cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// have an ISD::CondCode instead of an SDOperand. 2287cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner /// 2297cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand getSetCC(MVT::ValueType VT, SDOperand LHS, SDOperand RHS, 2307cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::CondCode Cond) { 2317cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner return getNode(ISD::SETCC, VT, LHS, RHS, getCondCode(Cond)); 2327cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner } 2339373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2349373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// getSelectCC - Helper function to make it easier to build SelectCC's if you 2359373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// just have an ISD::CondCode instead of an SDOperand. 2369373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman /// 2379373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand getSelectCC(SDOperand LHS, SDOperand RHS, 2389373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand True, SDOperand False, ISD::CondCode Cond) { 2399373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman MVT::ValueType VT = True.getValueType(); 2409373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman return getNode(ISD::SELECT_CC, VT, LHS, RHS, True, False,getCondCode(Cond)); 2419373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 2427cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner 2437cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman /// getBR2Way_CC - Helper function to make it easier to build BRTWOWAY_CC 2447cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman /// nodes. 2457cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman /// 2467cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman SDOperand getBR2Way_CC(SDOperand Chain, SDOperand CCNode, SDOperand LHS, 2477cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman SDOperand RHS, SDOperand True, SDOperand False) { 2487cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman std::vector<SDOperand> Ops; 2497cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Ops.push_back(Chain); 2507cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Ops.push_back(CCNode); 2517cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Ops.push_back(LHS); 2527cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Ops.push_back(RHS); 2537cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Ops.push_back(True); 2547cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Ops.push_back(False); 2557cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman return getNode(ISD::BRTWOWAY_CC, MVT::Other, Ops); 2567cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 2577cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 258c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// getLoad - Loads are not normal binary operators: their result type is not 259c3aae25116e66c177579b0b79182b09340b19753Chris Lattner /// determined by their operands, and they produce a value AND a token chain. 260cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner /// 26121074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner SDOperand getLoad(MVT::ValueType VT, SDOperand Chain, SDOperand Ptr, 26221074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner SDOperand SV); 2635fbb5d2459a5410590f285250faa604576308a93Nate Begeman SDOperand getVecLoad(unsigned Count, MVT::ValueType VT, SDOperand Chain, 2645fbb5d2459a5410590f285250faa604576308a93Nate Begeman SDOperand Ptr, SDOperand SV); 2655f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner SDOperand getExtLoad(unsigned Opcode, MVT::ValueType VT, SDOperand Chain, 2665f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner SDOperand Ptr, SDOperand SV, MVT::ValueType EVT); 2672d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 2682d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth // getSrcValue - construct a node to track a Value* through the backend 269691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth SDOperand getSrcValue(const Value* I, int offset = 0); 270cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 2711b95095857b78e12138c22e76c7936611c51355bChris Lattner 2721b95095857b78e12138c22e76c7936611c51355bChris Lattner /// SelectNodeTo - These are used for target selectors to *mutate* the 2731b95095857b78e12138c22e76c7936611c51355bChris Lattner /// specified node to have the specified return type, Target opcode, and 2741b95095857b78e12138c22e76c7936611c51355bChris Lattner /// operands. Note that target opcodes are stored as 275eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner /// ISD::BUILTIN_OP_END+TargetOpcode in the node opcode field. The 0th value 276eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner /// of the resultant node is returned. 277eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT); 278eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 279eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1); 280eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 281eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2); 282eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 283eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3); 284eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 285eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3, 286eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op4); 287eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 288eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3, 289eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op4, SDOperand Op5); 290eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT, 291eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3, 292eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op4, SDOperand Op5, SDOperand Op6); 293eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 294eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2); 295eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 296eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 297eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op3); 298eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 299eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 300eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op3, SDOperand Op4); 301eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1, 302eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2, 303eb19e40efbd3cae80c908a30cdf4d33450733c45Chris Lattner SDOperand Op3, SDOperand Op4, SDOperand Op5); 304753c8f20e45f6e4198c7cf4096ecc8948a029e9cChris Lattner 305753c8f20e45f6e4198c7cf4096ecc8948a029e9cChris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT) { 306753c8f20e45f6e4198c7cf4096ecc8948a029e9cChris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, VT); 307753c8f20e45f6e4198c7cf4096ecc8948a029e9cChris Lattner } 308056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT, 309056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand Op1) { 310056f9f61d071c6c583951678f2bf543a1316efccChris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1); 311056f9f61d071c6c583951678f2bf543a1316efccChris Lattner } 312056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT, 313056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand Op1, SDOperand Op2) { 314056f9f61d071c6c583951678f2bf543a1316efccChris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1, Op2); 315056f9f61d071c6c583951678f2bf543a1316efccChris Lattner } 3163cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT1, 3173cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner MVT::ValueType VT2, SDOperand Op1, SDOperand Op2) { 3183cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner std::vector<MVT::ValueType> ResultTys; 3193cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner ResultTys.push_back(VT1); 3203cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner ResultTys.push_back(VT2); 3213cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner std::vector<SDOperand> Ops; 3223cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner Ops.push_back(Op1); 3233cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner Ops.push_back(Op2); 3243cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, ResultTys, Ops); 3253cd82619a84f97fa14e8f80ddcf8b858b4eaf2d2Chris Lattner } 326056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT, 327056f9f61d071c6c583951678f2bf543a1316efccChris Lattner SDOperand Op1, SDOperand Op2, SDOperand Op3) { 328056f9f61d071c6c583951678f2bf543a1316efccChris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1, Op2, Op3); 329056f9f61d071c6c583951678f2bf543a1316efccChris Lattner } 3305ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT, 3315ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman SDOperand Op1, SDOperand Op2, SDOperand Op3, 3325ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman SDOperand Op4) { 3335ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1, Op2, Op3, Op4); 3345ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman } 3355ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT, 3365ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman SDOperand Op1, SDOperand Op2, SDOperand Op3, 3375ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman SDOperand Op4, SDOperand Op5) { 3385ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1, Op2, Op3, Op4, Op5); 3395ce0d308e6d7ada28adce0465c14c8197fcc0c8dNate Begeman } 340420089c47c58f41c188a5f5f282377771d67462bChris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT, 341420089c47c58f41c188a5f5f282377771d67462bChris Lattner std::vector<SDOperand> &Ops) { 342420089c47c58f41c188a5f5f282377771d67462bChris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Ops); 343420089c47c58f41c188a5f5f282377771d67462bChris Lattner } 344e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner SDOperand getTargetNode(unsigned Opcode, MVT::ValueType VT1, 345e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner MVT::ValueType VT2, std::vector<SDOperand> &Ops) { 346e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner std::vector<MVT::ValueType> ResultTys; 347e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(VT1); 348e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner ResultTys.push_back(VT2); 349e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner return getNode(ISD::BUILTIN_OP_END+Opcode, ResultTys, Ops); 350e3f1026683c38f6605ccaf698b7082f1b0a0f8c8Chris Lattner } 3516542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner 3526542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner /// ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead. 35326005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// This can cause recursive merging of nodes in the DAG. Use the first 35426005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// version if 'From' is known to have a single result, use the second 35526005b1b672aebd437edc561d381c5dd19a03ddbChris Lattner /// if you have two nodes with identical results, use the third otherwise. 3566542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner /// 357fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// These methods all take an optional vector, which (if not null) is 358fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// populated with any nodes that are deleted from the SelectionDAG, due to 359fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// new equivalences that are discovered. 360fde3f3061d665babeb78443119a09876098fc35eChris Lattner /// 361fde3f3061d665babeb78443119a09876098fc35eChris Lattner void ReplaceAllUsesWith(SDOperand From, SDOperand Op, 362fde3f3061d665babeb78443119a09876098fc35eChris Lattner std::vector<SDNode*> *Deleted = 0); 363fde3f3061d665babeb78443119a09876098fc35eChris Lattner void ReplaceAllUsesWith(SDNode *From, SDNode *To, 364fde3f3061d665babeb78443119a09876098fc35eChris Lattner std::vector<SDNode*> *Deleted = 0); 365fde3f3061d665babeb78443119a09876098fc35eChris Lattner void ReplaceAllUsesWith(SDNode *From, const std::vector<SDOperand> &To, 366fde3f3061d665babeb78443119a09876098fc35eChris Lattner std::vector<SDNode*> *Deleted = 0); 3676542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner 368ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner 369ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner /// DeleteNode - Remove the specified node from the system. This node must 370ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner /// have no referrers. 371ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner void DeleteNode(SDNode *N); 372ba8a0e0d7f03b7cac03ff1eaf9f048eb9d32bd46Chris Lattner 373cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner void dump() const; 374d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner 375d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattnerprivate: 3761b95095857b78e12138c22e76c7936611c51355bChris Lattner void RemoveNodeFromCSEMaps(SDNode *N); 3776542d950609208de3e1cde704c5f89aad864c0d9Chris Lattner SDNode *AddNonLeafNodeToCSEMaps(SDNode *N); 378f0e80cf909b69b5f31b8d027de6ee4b963205f66Chris Lattner void DestroyDeadNode(SDNode *N); 379fde3f3061d665babeb78443119a09876098fc35eChris Lattner void DeleteNodeNotInCSEMaps(SDNode *N); 380109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner void setNodeValueTypes(SDNode *N, std::vector<MVT::ValueType> &RetVals); 381109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner void setNodeValueTypes(SDNode *N, MVT::ValueType VT1, MVT::ValueType VT2); 382109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 3837cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner 38432c392a3a5e397b5f1cc83aaedfab96368d11e8aNate Begeman /// SimplifySetCC - Try to simplify a setcc built with the specified operands 38532c392a3a5e397b5f1cc83aaedfab96368d11e8aNate Begeman /// and cc. If unable to simplify it, return a null SDOperand. 3864cf009f49cd37ae9cf4096dfe7ee9bcfa8e59b7aChris Lattner SDOperand SimplifySetCC(MVT::ValueType VT, SDOperand N1, 3874cf009f49cd37ae9cf4096dfe7ee9bcfa8e59b7aChris Lattner SDOperand N2, ISD::CondCode Cond); 388109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 389109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner // List of non-single value types. 390109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner std::list<std::vector<MVT::ValueType> > VTList; 391109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 3921cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // Maps to auto-CSE operations. 393ab2eb66f07689dc1698ace2182e77395254ad83dChris Lattner std::map<std::pair<unsigned, MVT::ValueType>, SDNode *> NullaryOps; 3941cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<unsigned, std::pair<SDOperand, MVT::ValueType> >, 3951cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDNode *> UnaryOps; 3961cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<unsigned, std::pair<SDOperand, SDOperand> >, 3971cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDNode *> BinaryOps; 3981cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 399d6a80778e5a5fab339036b2f462d3039efe28a08Chris Lattner std::map<std::pair<unsigned, MVT::ValueType>, RegisterSDNode*> RegNodes; 4007cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner std::vector<CondCodeSDNode*> CondCodeNodes; 4011cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 4021cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<SDOperand, std::pair<SDOperand, MVT::ValueType> >, 4031cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner SDNode *> Loads; 4041cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 40514229bb6369c110644c11bc7906b0c1167d3a87aEvan Cheng std::map<std::pair<const GlobalValue*, int>, SDNode*> GlobalValues; 40614229bb6369c110644c11bc7906b0c1167d3a87aEvan Cheng std::map<std::pair<const GlobalValue*, int>, SDNode*> TargetGlobalValues; 4071cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> Constants; 408056f9f61d071c6c583951678f2bf543a1316efccChris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> TargetConstants; 409b29cb29364d3e22f062c695d2d5740dda42d8e8eChris Lattner std::map<std::pair<uint64_t, MVT::ValueType>, SDNode*> ConstantFPs; 410afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner std::map<int, SDNode*> FrameIndices, TargetFrameIndices; 4115839bf2b3bd22689d9dd0e9de66c2dce71d130aeChris Lattner std::map<Constant *, SDNode*> ConstantPoolIndices; 4125839bf2b3bd22689d9dd0e9de66c2dce71d130aeChris Lattner std::map<Constant *, SDNode*> TargetConstantPoolIndices; 4131cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner std::map<MachineBasicBlock *, SDNode*> BBNodes; 41415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner std::vector<SDNode*> ValueTypeNodes; 4155f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner std::map<std::string, SDNode*> ExternalSymbols; 4162a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth std::map<std::string, SDNode*> TargetExternalSymbols; 41747725d059b259f8a0c145478300c9e9caa006b59Chris Lattner std::map<std::string, StringSDNode*> StringNodes; 4184211e73c4905af413db7524f24414c16a7f69102Chris Lattner std::map<std::pair<unsigned, 4196765bfed31f06d7ed2f5a87248ffadc9dce10de4Chris Lattner std::pair<MVT::ValueType, std::vector<SDOperand> > >, 4206765bfed31f06d7ed2f5a87248ffadc9dce10de4Chris Lattner SDNode*> OneResultNodes; 4216765bfed31f06d7ed2f5a87248ffadc9dce10de4Chris Lattner std::map<std::pair<unsigned, 4224211e73c4905af413db7524f24414c16a7f69102Chris Lattner std::pair<std::vector<MVT::ValueType>, 4234211e73c4905af413db7524f24414c16a7f69102Chris Lattner std::vector<SDOperand> > >, 4244211e73c4905af413db7524f24414c16a7f69102Chris Lattner SDNode*> ArbitraryNodes; 425cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner}; 426cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 4271080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnertemplate <> struct GraphTraits<SelectionDAG*> : public GraphTraits<SDNode*> { 4281080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SelectionDAG::allnodes_iterator nodes_iterator; 4291080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_begin(SelectionDAG *G) { 4301080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_begin(); 4311080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 4321080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static nodes_iterator nodes_end(SelectionDAG *G) { 4331080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return G->allnodes_end(); 4341080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 4351080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 4361080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 437b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner} // end namespace llvm 438cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner 439cacf462915344c2af25eef1af1f3ee2c7280ff56Chris Lattner#endif 440